Respuestas

2012-05-22T18:40:11+02:00

x-y=3/4

x/y=0,1

 

x=3/4+y

x/y=0,1

 

(3/4+y)/y=0,1

3/4+y=0,1y

0,9y=-3/4

(9/10)y=-3/4

y=-3/4*10/9

y=-5/6

 

x=3/4-5/6

x=9/12-10/12

x=-1/12